$breakpoints: (
  'xxxs': 'only screen and ( min-width: 400px)',
  'xxs': 'only screen and ( min-width: 414px)',
  'xs': 'only screen and ( min-width: 480px)',
  'sm': 'only screen and ( min-width: 768px)',
  'md': 'only screen and ( min-width: 992px)',
  'lg': 'only screen and ( min-width: 1200px)',
) !default;